g(rho sigma gamma) coupling constant in light cone QCD

The coupling constant g(rhosigmagamma) is determined from light cone QCD sum rules. A comparison of our result with the ones existing in the literature is presented.


g(B*B rho) and g(D*D rho) coupling constants in light cone QCD sum rules
Alıyev, Tahmasıb; Iltan, E; Pak, NK (1996-01-01)
The decay constants for the strong off-shell B* --> B rho and D* --> D rho decays are calculated in the framework of light cone QCD sum rules. The results are shown to be in agreement with the predictions of the ''classical'' sum rules method, and with those of the vector dominance model.
New hidden beauty molecules predicted by the local hidden gauge approach and heavy quark spin symmetry
Xiao, C. W.; Özpineci, Altuğ; Oset, E. (2010-06-24)
Using a coupled channel unitary approach, combining the heavy quark spin symmetry and the dynamics of the local hidden gauge, we investigate the meson-meson interaction with hidden beauty. We obtain several new states of isospin I = 0: six bound states, and weakly bound six more possible states which depend on the influence of the coupled channel effects.
Decay rho(0)->pi(+)+pi(-)+gamma and the coupling constant g(rho sigma gamma)
Gokalp, A; Yılmaz, Osman (2000-11-01)
The experimental branching ratio for the radiative decay rho (0)-pi (+) + pi (-) + gamma is used to estimate the coupling constant g(rho sigma gamma) for a set of values of sigma -meson parameters M-sigma and Gamma (sigma). Our results are quite different than the values of this constant used in the literature.
The coupling constants g(rho pi gamma) and g(omega pi gamma) as derived from QCD sum rules
Gokalp, A; Yılmaz, Osman (2002-05-01)
We employ QCD sum rules to calculate the coupling constants g(rhopigamma) and g(rhopigamma) by studying the three point rhopigamma and omegapigamma correlation functions. Our results are in good agreement with the coupling constants g(rhopigamma) and g(omegapigamma) that are deduced utilizing the experimentally measured values of the Gamma(rho(0) --> pi(0)gamma) and Gamma(omega --> pi(0)gamma) decay widths.
The effects of p-w mixing in radiative vector meson decays
Küçükarslan, Ayşe; Yılmaz, Osman; Department of Physics (2003)
The radiative ? ? p0p0?, ? ? p0p0?, ? ? p+p-? and ? ? p+p-? decays are studied by adding the effect of vector meson mixing to the amplitude of these decays. For the above decays we consider only ? - ? mixing. In addition to the ? - ? mixing, we also analyse the contributions coming from different intermediate states to examine the decay mechanism of these decays in a phenomenological framework. For ? ? p0p0? decay, we consider the contributions of the ?-meson and s-meson intermediate states and of the kaon-...
Citation Formats
T. Alıyev and M. Savci, “g(rho sigma gamma) coupling constant in light cone QCD,” PHYSICAL REVIEW D, pp. 0–0, 2002, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/41928.